Is Your GM Vehicle Running Rough, Stalling, or Showing a Check Engine Light?
As a mechanic with over two decades of experience under the hood, I’ve seen it all. When a car comes into my bay with baffling electrical gremlinsโpoor fuel economy, erratic shifting, or a dreaded no-start conditionโmy diagnostic process often leads straight to the Engine Control Module (ECM). The ECM is the brain of your engine, and when it fails, it can cause a cascade of frustrating and costly problems. If you’re dealing with these symptoms in your Cadillac, Chevy, Buick, or GMC, this is the reliable, cost-effective solution you’ve been searching for.
A Mechanic’s Real-World Experience
“A customer’s 2018 Chevy Equinox with the 2.0L engine came in last week with a persistent P0606 code (ECM/PCM Processor Fault) and intermittent stalling at stoplights. After meticulously checking all power and ground circuits to the module and finding them solid, we knew the internal processor of the ECM itself was the culprit. Swapping in one of our pre-programmed modules, like this very one, had the vehicle running perfectly in under an hour after the security relearn. It’s a common failure point I’ve diagnosed hundreds of times on this GM platform.”
Why Choose Our Programmed ECM 12669908?
Don’t pay dealership prices or waste time with a module that isn’t configured for your car. This is a genuine, used GM ECM, service number 12669908, that has been meticulously tested and is ready for a new life in your vehicle. We take the guesswork and hassle out of the replacement process.
- โ VIN-Specific Programming Included: We flash this module with the latest official GM software calibrations specifically for your vehicle’s VIN. This ensures perfect compatibility and performance right out of the box.
- โ Solves Common Failures: An effective fix for a wide range of issues including check engine lights, communication error codes, harsh shifting, and no-start situations tied to a faulty computer.
- โ Cost-Effective Solution: Get a reliable, tested, and programmed genuine GM part without the extreme expense of a brand new module from a dealer.
- โ Broad Compatibility: This versatile module fits a wide array of popular GM models, making it a proven component across the lineup.
IMPORTANT: Post-Installation Requirements
This is a critical step for a successful installation. While we handle the core programming to your VIN, modern vehicles have sophisticated anti-theft systems that are tied to the ECM. It is the buyer’s responsibility to perform the final vehicle-side procedures.
- Vehicle Anti-Theft Relearn (VATS/Passlock): Upon installation, if the vehicle cranks but does not start, a security relearn procedure is required. This synchronizes the new ECM with your vehicle’s immobilizer system. This procedure must be performed using a professional scan tool with access to GM’s TIS2Web programming service.
- Other Relearns: Depending on your specific vehicle, other procedures like a Crankshaft Variation Relearn (Case Learn), injector flow rate programming, or idle learn may be necessary to achieve optimal performance and clear any related trouble codes.
Simplified Installation Guide
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
- Locate the ECM: On most compatible models, the ECM is found in the engine compartment, typically on the driver’s side (LH side) or sometimes mounted above the battery.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab or lever that needs to be released. Once disconnected, unbolt the old ECM from its mounting bracket.
- Install the New ECM: Mount your new, pre-programmed ECM in place and securely fasten the bolts. Reconnect the electrical harnesses, ensuring they click firmly into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearn Procedures: Follow the required security and other relearn procedures as detailed above to fully integrate the module with your vehicle.
Guaranteed Fitment for Service Number 12669908
This module is a direct replacement for service number 12669908. Please verify this number on your original part. It is confirmed to fit the following vehicles and options:
- ACADIA: 2017 (VIN Z, 2.5L), 2018 (2.5L)
- ATS: 2017 (2.0L)
- CRUZE: 2017-2018 (Gasoline)
- CTS: 2017 (2.0L)
- EQUINOX: 2018 (1.5L, 2.0L), 2019 (1.5L, ID 12669908)
- LACROSSE: 2018 (2.5L)
- MALIBU: 2017, 2018 (1.8L, 2.0L)
- REGAL: 2018 (2.0L)
- VOLT: 2017-2018 (Gasoline, ID 12669908)